#include <bits/stdc++.h>
using namespace std;
#define ios ios::sync_with_stdio(false), cin.tie(nullptr);
#define int long long
#define ll long long
#define int128 __int128
#define ull unsigned long long
#define endl "\n"
#define pi acos(-1)
typedef pair<int, int> pii;
const double eps = 1e-6;
const int N = 1e6 + 10, M = 1010, INF = 1e18;
const int mod = 998244353;

void solve()
{
    string ans;
    double a, b;
    cin >> a >> b;

    if (b <= 0)
    {
        for (int i = 1; i <= 50; i++)
            ans += '1';
    }
    else if (b >= 1)
    {
        for (int i = 1; i <= 50; i++)
            ans += '2';
    }
    else
    {
        string s;
        for (int i = 1; i <= 50; i++)
        {
            int x = (int)(b * 2);
            b = b * 2 - x;
            s += char(x + '0');
        }
        string ss;
        for (int i = 49; i >= 0; i--)
        {
            if (s[i] == '1')
            {
                ans += '2';
                ss = '1' + ss;
            }
            else
            {
                ans += '1';
                ss = '0' + ss;
            }
        }
    }
    cout << ans << endl;
}
signed main()
{
    ios;
    int T = 1;
    // cin >> T;
    // cout << fixed << setprecision(8);
    for (int i = 1; i <= T; i++)
    {
        // cout << "Case " << i << ": ";
        solve();
    }

    return 0;
}